1a. The following information is given for cobalt at 1 atm:
Tb = 3097.00°C | deltaHvap(3097.00°C) = J/g | |
Tm = 1495.00°C | deltaHfus(1495.00°C) = J/g | |
Specific heat solid = 0.4180 J/g °C | ||
Specific heat liquid = 0.6860 J/g °C |
A 40.00 g sample of solid cobalt is initially at 1468.00°C. If the sample is heated at constant pressure (P = 1 atm), _____ kJ of heat are needed to raise the temperature of the sample to 1686.00°C.
1b: The following information is given for mercury at 1 atm:
Tb = 356.60°C | deltaHvap(356.60°C) = J/g | |
Tm = –38.90°C | deltaHfus(–38.90°C) = J/g | |
Specific heat gas = 0.1040 J/g °C | ||
Specific heat liquid = 0.1390 J/g °C |
A 20.70 g sample of liquid mercury is initially at 246.30°C. If the sample is heated at constant pressure (P = 1 atm), ______ kJ of energy are needed to raise the temperature of the sample to 386.50°C.
1 (a)
Heat required to raise the temperature of the sample of cobalt from 1468.00 0C to 1686.00°C (H) =
Mass of the sample * Specific heat of solid cobalt * Temperature change
= 40.00 g * 0.4180 J/g °C * (1686.00 - 1468.00) 0C
= 3645 J
= 3.645 kJ
(b)
Heat required to raise the temperature of the sample of mercury from 246.30°C to 386.50°C (H) =
Mass of the sample * Specific heat of liquid mercury * Temperature change
= 20.70 g * 0.1390 J/g °C * (386.50 - 246.30) 0C
= 403.4 J
= 0.4034 kJ
1a. The following information is given for cobalt at 1 atm: Tb = 3097.00°C deltaHvap(3097.00°C) = J/g...
following information is given for mercury at 1 atm: AHap (356.60°c)-295.6 Jg AHu(-38.90°c) -11.60 J/g -356.60℃ Trn =-38.90°C Specific heat gas = 0.1040 Jg。C Specific heat liquid = 0.1390 J/g °C A 42.50 g sample of liquid mereury is initially at 88.40°C. If the sample is heated at constant pressure (P = 1 atm), kJ of energy are needed to raise the temperature of the sample to 367300.
The following information is given for mercury at 1 atm: boiling point = 356.6 °C Hvap(356.6 °C) = 295.6 J/g melting point = -38.90 °C Hfus(-38.90 °C) = 11.60 J/g specific heat gas = 0.1040 J/g °C specific heat liquid = 0.1390 J/g °C A 47.20 g sample of liquid mercury is initially at 274.90 °C. If the sample is heated at constant pressure (P = 1 atm), calculate the amount of energy in kJ needed to raise the temperature...
1) The following information is given for cobalt at 1 atm: = 3097.00°C (3097.00°C) = J/g = 1495.00°C (1495.00°C) = J/g Specific heat solid = 0.4180 J/g °C Specific heat liquid = 0.6860 J/g °C A 42.50 g sample of solid cobalt is initially at 1483.00°C. If the sample is heated at constant pressure ( = 1 atm), kJ of heat are needed to raise the temperature of the sample to 1900.00°C. 2) The following information is given for water at 1 atm:...
The following information is given for tin at 1 atm: Tb = 2270.00°C AHvap (2270.00°C) = 1.939 x 109 J/g Tm = 232.00°C | AHfus ( 232.00°C) = 59.60 J/g Specific heat solid = 0.2260 J/g °C Specific heat liquid = 0.2430 J/g °C A 22.10 g sample of solid tin is initially at 203.00°C. If 2.822 x 10' J of heat are added to the sample at constant pressure (P = 1 atm), which of the following is/are true?...
The following information is given for bismuth at 1 atm: Tb 1627.00°C Tm 271.00°C Specific heat solid 0.1260 J/g oc Specific heat liquid 0.1510 Jg °C A 40.10 g sample of solid bismuth is initially at 244.00°C. If the sample is heated at constant pressure (P- 1 atm), sample to 608.00°C. AHvap (1627.00°C) 822.9 J/g AHus (271.00°C) 52.60 /g kJ of heat are needed to raise the temperature of the
The following information is given for benzene at 1 atm: Tb= 80.10°C Tm= 5.50°C Specific heat gas = 1.040 J/g °C Specific heat liquid = 1.740 J/g °C Delta H Vap(80.10°C) = 393.3 J/g Delta H Fusion (5.50°C) = 127.4J/g A 38.30 g sample of liquid benzene is initially at 26.20°C. If the sample is heated at constant pressure ( = 1 atm), kJ of energy are needed to raise the temperature of the sample to 92.70°C.
The following information is given for aluminum at 1 atm: Ti = 2467.00°C AHvap (2467.00°C) = 1.053 x 104 J/g AHfus (660.00°C) = 398.4 J/g Tm = 660.00°C Specific heat solid = 0.9000 J/g °C Specific heat liquid = 1.088 J/g °C A 44.60 g sample of solid aluminum is initially at 643.00°C. If the sample is heated at constant pressure (P= 1 atm), kJ of heat are needed to raise the temperature of the sample to 877.00°C.
The following information is given for ethanol at 1 atm: 78.40°C 837.0 J/g AHvap (78.40°C) T,--114.50°C 114.50°C) 109.0 J/g Specific heat gas - 1.430 Jlg °OC Specific heat liquid-2.460 J/g oC A 38.40 g sample of liquid ethanol is initially at -74.20°C. If the sample is heated at constant pressure (P -1 atm), needed to raise the temperature of the sample to 99.40°C. kJ of energy are The following information is given for ethanol at 1 atm: 78.40°C 837.0 J/g...
The following information is given for lead at 1 atm AHvap (1740.00°C) 858.2 J/g AHfus (328.00°C) 23.00 J/g Tb 1740.00°C Tm 328.00°C Specific heat solid 0.1300 J/g °C Specific heat liquid = 0.1380 J/g °C A 42.40 g sample of solid lead is initially at 304.00°C. If 1.548 x 103 Jof heat are added to the sample at constant pressure (P which of the following is are true? 1 atm) (Select all that apply) The sample is at a temperature...
The following information is given for water at 1 atm: T) - 100.00°C Adap (100.00°C)= 2.259 x 109 J/g AH (0.00°C) - 333.5 J/g T.-0.00°C Specific heat solid - 2.100 J/g °C Specific heat liquid - 4.184 J/g °C A 32.10 g sample of solid water is initially at -23.00°C. If the sample is heated at constant pressure (P = 1 atm). kJ of heat are needed to raise the temperature of the sample to 22.00°C.