Problem: What is the change in internal energy (in kJ) when a gas does 135 J of work on the surroundings and at the same time absorbs 156 J of heat? a. 0.021 kJ b. 21 kJ c. -0.291 kJ d. 0.291 kJ e. 0.458 kJ

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What is the change in internal energy (in kJ) when a gas does 135 J of work on the surroundings and at the same time absorbs 156 J of heat? 

a. 0.021 kJ 

b. 21 kJ 

c. -0.291 kJ 

d. 0.291 kJ 

e. 0.458 kJ

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