1)
Q = +25 J (positive because heat is absorbed)
W = -7 J (negative because gas expands and does work)
use:
delta U = Q + W
= 25 J - 7 J
= 18 J
Answer: +18 J
Only 1 question at a time please
Help me solve this please Calculate AE of a gas for a process in which the...
Question 26 3.7 pts Calculate AU of a gas for a process in which the gas absorbs 23 J of heat and does 7 J of work by expanding. -30 J +30 J -16 J OOJ +16 J
Calculate A U of a gas for a process in which the gas absorbs 45 J of heat and does 11 J of work by expanding. a. -56J b.56J C-34) d.OJ e. 34 )
Someone please help solving this asap thanks!
1. Calculate AE and determine whether the process is exothermic or endothermic for the following cases: L. When a chemical reaction produces 90.7 kJ of heat but does no work on its surroundings. il. When combustion of a gas releases 2100U of heat to its surroundings. ii. When 33.05 kd of heat is transferred to the system and 22.0 kJ of work on the surroundings. Iv. When 121 kJ of work is performed...
Calculate AU of a gas for a process in which the gas absorbs 29 J of heat and does 31 J of work by expanding A. 21 B. 60) C. -60J D. -2J Which of the following statements is not true for an exothermic reaction? A. Heat passes from the reaction system to the surroundings. B. The products have a higher heat content than the reactants. C. The temperature of the reaction system increases D. The enthalpy change for the...
Calculate the change in the internal energy of the system for a process in which the system absorbs 140 J of heat from the surroundings and does 85 J of work on the surroundings.
can someone help me with number 17.35 and 17.49? thank
you
Toe Boyle's law to determine the final - 33 A 220-L cylinder contains 150 atm. If the gas is allowed to opposing pressure of 1.0 atm, how The expansion will stop when the in palision will stop Il equals the external pressure. determine the final volume. nder contains an ideal gas at a pressure of 1f the gas is allowed to expand against a constant pressure of 1.0 atm,...
Please help me about Physics, Thanks. A sample of 1.00 mole of a
diatomic ideal gas is intially at temperature 265K...........
Thermodynamic Processes involving Ideal Gases-in-class worksheet-(5 points) PHYS 181 Question B (B.) A sample of 1.00 mole of a diatomic ideal gas is initially at temperature 265 K and volume 0.200 m. The gas first undergoes an isobaric expansion, such that its temperature increases by 120.0 K. It then undergoes an adiabatic expansion so that its final volume is...
A balloon holding 3.50 moles of neon (Ne) gas absorbs 895 J of thermal energy while doing 112 J of work expanding to a larger volume. (a) Find the change in the balloon's internal energy (in J). I got the anwser at 783J (b) Calculate the change in temperature of the gas (in K). ____K Please Help
1. A gas absorbs 0.0 J of heat and then performs 30.8 J of work. The change in internal energy of the gas is a. 61.6 J. b. 30.8 J. c. -61.6 J. d.-30.8 J. e. none of these 2. Which of the following statements correctly describes the signs of q and w for the following exothermic process at P= 1 atm and T = 370 K? H2O(g) → H2O(1) a. q and w are negative. b. is positive, wis...
2. Work and Heat. Calculate the change in the internal energy of the system for a process in which the system absorbs 140 J of heat from the surroundings and does 85 J of work on the surroundings,