A fixed mass of helium gas is made to undergo a process in which its pressure varies linearly from $$1$$ kPa to $$2$$ kPa, in relation to its volume as the latter varies from $$0.2$$ $$m3$$ to $$0.4$$ $$m3$$. The heat absorbed by the gas will be

Question

A fixed mass of helium gas is made to undergo a process in which its pressure varies linearly from $$1$$ kPa to $$2$$ kPa, in relation to its volume as the latter varies from $$0.2$$ $$m3$$ to $$0.4$$ $$m3$$. The heat absorbed by the gas will be

Infinity Learn · Accepted Answer

∆W $$=1$$ $$+$$ $$2$$ × $$103N/m2$$× $$0.4$$ – $$0.2m3=$$ $$300$$ JΔU $$=$$ nCV∆T $$=(P2V2$$−$$P1V1)$$γ−$$1=$$ $$3/2$$ $$0.4$$ × $$2$$ − $$0.2$$ × $$1$$ × $$103$$ J $$=$$ $$900$$ J                       ΔQ $$=$$ΔW $$+$$ΔU $$=$$ $$1200$$ J

A fixed mass of helium gas is made to undergo a process in which its pressure varies linearly from 1 kPa to 2 kPa, in relation to its volume as the latter varies from 0.2 $m^{3}$ to 0.4 $m^{3}$ . The heat absorbed by the gas will be

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A fixed mass of helium gas is made to undergo a process in which its pressure varies linearly from 1 kPa to 2 kPa, in relation to its volume as the latter varies from 0.2 m3 to 0.4 m3. The heat absorbed by the gas will be

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A fixed mass of helium gas is made to undergo a process in which its pressure varies linearly from 1 kPa to 2 kPa, in relation to its volume as the latter varies from 0.2 $m^{3}$ to 0.4 $m^{3}$ . The heat absorbed by the gas will be