Which substance in the table below undergoes the greatest temperature change when the same mass of each substance absorbs the same amount of heat?
substance specific / heat (J/(g⋅0C)
N2 (g) / 1.04
C2H5OH (l) / 2.42
H2O (l) / 4.18
CH4 (g) / 2.20
Which substance in the table below undergoes the greatest temperature change when the same mass of...
The specific heat capacities for several substances are shown in the table. Substance Specific Heat (J/g.°C) iron 0.45 methane 2.19 water 4.18 brick 0.84 If equal masses of each substance absorb the same amount of heat, which substance undergoes the greatest temperature change? brick O water O methane O iron
Which of the following substances (with specific heat capacity provided) would show the greatest temperature change upon absorbing 100.0 J of heat? a. 100 g Ag, CAg= O.235 J/g*C b. 10.0 g H2O, CH2O= 4.18 J/g*C c. 1.00 g ethanol, Cethanol= 2.42 J/g*C d. 50.0 g Fe, CFe=0.449 J/g*C Given the equations to use ΔT=ΔH/MCs
Which of the following 10.0 gram substances will increase in temperature by the greatest amount when 100 J of heat is added to each? Substance D, specific heat 1.67 J/(g°C) Substance C, specific heat 1.22 J/(g°C) Substance A, specific heat 1.06 J/(g°C) Substance B, specific heat 0.892 J/(g°C) Given that the enthalpy of formation, AH, of gaseous nitrogen dioxide is +33.84 kJ/mol, what is the enthalpy change for the following reaction? 2NO2(g) N2(g)202(g) AH= ? -33.84 kJ +67,68 kJ -67.68...
A calorimeter contains 29.0 mL of water at 14.0 ∘C . When 1.30 g of X (a substance with a molar mass of 61.0 g/mol ) is added, it dissolves via the reaction X(s)+H2O(l)→X(aq) and the temperature of the solution increases to 27.0 ∘C . Calculate the enthalpy change, ΔH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g⋅∘C)], that density of water is 1.00...
1. (5 points total) Refer to the table below for these questions. SPECIFIC HEATS OF SOME SUBSTANCES AT 25 °C Substance Specific Heat (J/g."C) Substance Specific Heat (J/g °C) N2 (9) 1.04 HO (V 4.184 Al(s) 0.90 CH, (g) 2.20 Fe (s) 0.45 CO2 (9) 0.84 Hg (0) 0.14 CaCO3(s) 0.82 a. It takes 3.7 kJ to raise the temperature of a 62.3 ounce sample of an unknown substance by 15.9 °C. Identify the substance from those listed in the...
I need help with these two 1 The table below shows time, temperature, and temperature change data collected using Pivot Lab#8 (Specific Heat of Water Experiments). The heat supplied, Q, is to be calculated from Q = Pt (where P is the power of the light bulb which is 25 watts and t is the time). For example, when t = 200 s, Q = 25 watts x 200 s = 5000 Joules. Plot Temp. Change (vertical axis) versus Heat...
1) A calorimeter contains 28.0 mL of water at 11.5 ?C . When 2.20 g of X (a substance with a molar mass of 51.0 g/mol ) is added, it dissolves via the reaction X(s)+H2O(l)?X(aq) and the temperature of the solution increases to 30.0 ?C . Calculate the enthalpy change, ?H, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g??C)], that density of water is...
1. If 10.0 grams of an unknown metal undergoes a temperature change of 8.5°C and absorbs 32.47 J. Calculate the specific heat of the metal and identify the metal.
1)calculate the specific heat of 87.0 grams of a substance that when it absorbs 9,370 joules of heat, it increases in temperature from 15.0 degrees c to 75.0 degrees c 2) calculate the energy needed to heat 127.0 grams of water from 25 degrees c to 95 degrees c. assume that the specific heat for liquid water is 4.18 j/g degress c
Question 9 of15 The temperature of an object increases by 41.6 °C when it absorbs 3641 J of heat. Calculate the heat capacity of the object. The mass of the object is 365 g. Use the table of specific heat values to identify the composition of the object Substance Specific heat (J/(g . ! gold silver iron aluminum 0.129 0.240 0.444 0.900