Consider a heat engine as shown in figure. `Q_(1)and Q_(2)` are heat added both to `T_(1)` and heat taken from `T_(2)` in one cycle of engine. W is the mechanical work done on the engine. If `Wgt0`, then possibilities areA. `Q_(1)gtQ_(2)gt0`B. `Q_(2)gtQ_(1)gt0`C. `Q_(2)ltQ_(1)lt0`D. `Q_(1)lt0, Q_(2)gt0`

Consider a heat engine as shown in figure. `Q_(1)and Q_(2)` are heat a

1.	Consider a heat engine as shown in figure. `Q_(1)and Q_(2)` are heat added both to `T_(1)` and heat taken from `T_(2)` in one cycle of engine. W is the mechanical work done on the engine. If `Wgt0`, then possibilities areA. `Q_(1)gtQ_(2)gt0`B. `Q_(2)gtQ_(1)gt0`C. `Q_(2)ltQ_(1)lt0`D. `Q_(1)lt0, Q_(2)gt0`
Answer» Correct Answer - A::C Consider the figure we can write `Q_(1)=W+Q_(2)` `rArr" "W=Q_(1)-Q_(2)gt0 " "("By question")` `rArr" "Q_(1)gtQ_(2)gt0" "("If both "Q_(1)andQ_(2)" are positive")` ltBrgt We can also, write `Q_(2)ltQ_(1)lt0 ("If both "Q_(1)andQ_(2)" are negative")`.

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