Question 974: Thermodynamics & KTG

Question

If $$\Delta $$U and $$\Delta $$W represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true ?

Accepted Answer

By first law of thermodynamics,
$$\Delta Q = \Delta U + \Delta W$$
In adiabatic process, $$\Delta Q = 0$$
$$ 	herefore $$ $$\Delta U =  - \Delta W$$
In isothermal process, $$\Delta U = 0$$
$$ 	herefore $$ $$\Delta Q = \Delta W$$

Answer

$$\Delta $$U = $$-$$$$\Delta $$W, in an adiabtic process

Answer

$$\Delta $$U = $$\Delta $$W, in an isothermal process

Answer

$$\Delta $$U = $$\Delta $$W, in an adiabatic process

Answer

$$\Delta $$U = $$-$$ $$\Delta $$W, in an isothermal process

Thermodynamics & KTG

If $\Delta U and \Delta $W represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true ?

Choose the correct answer: