If ∆Q is the heat supplied to a gas so that the internal energy of the system increases by ∆U, then the work done ∆W by the gas is equal to:
∆Q – ∆U

∆Q + ∆U

∆Q x ∆U

∆U/∆Q

Question

If ∆Q is the heat supplied to a gas so that the internal energy of the system increases by ∆U, then the work done ∆W by the gas is equal to:
∆Q – ∆U
	
∆Q + ∆U
	
∆Q x ∆U
	
∆U/∆Q

irishboy123 · Answer

this is the law of conservation of energy as it applies to the study thermodynamics 

it yields the first law of thermodunamics:

∆U = ∆Q - ∆W

change in internal energy of system = heat added to system - work done BY system

you can fiddle about with that to get your answer.....