Consider an engine that absorbs 130 text{ cal | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The heat absorbed per cycle is $Q_H = 130 	ext{ cal}$.The heat rejected per cycle is $Q_C = 30 	ext{ cal}$.The net heat converted to work per cy

Vedclass · Accepted Answer

$627$

Vedclass · Answer

(C) The heat absorbed per cycle is $Q_H = 130 	ext{ cal}$.The heat rejected per cycle is $Q_C = 30 	ext{ cal}$.The net heat converted to work per cycle is $W_{	ext{net}} = (Q_H - Q_C) 	imes 4.2 	ext{ J/cal} = (130 - 30) 	imes 4.2 = 100 	imes 4.2 = 420 	ext{ J}$.The energy consumed to overcome friction per cycle is $W_f = 2 	ext{ J}$.The useful work delivered to the load per cycle is $W_{	ext{load}} = W_{	ext{net}} - W_f = 420 	ext{ J} - 2 	ext{ J} = 418 	ext{ J}$.The engine operates at $90 	ext{ cycles per minute}$, which is $90/60 = 1.5 	ext{ cycles per second}$.The power delivered to the load is $P = W_{	ext{load}} 	imes 	ext{frequency} = 418 	ext{ J} 	imes 1.5 	ext{ s}^{-1} = 627 	ext{ W}$.

$A$. Steam engine	$I$. Magnetic confinement of plasma
$B$. Electron microscope	$II$. Laws of thermodynamics
$C$. Non-reflecting coatings	$III$. Wave nature of electrons
$D$. Tokamak	$IV$. Interference of light

Similar Questions

$A$ container is filled with $20$ moles of an ideal diatomic gas at absolute temperature $T$. When heat is supplied to the gas,the temperature remains constant,but $8$ moles dissociate into atoms. The heat energy given to the gas is ......... (in $R T$)

$N$ moles of an ideal diatomic gas are in a cylinder at temperature $T$. Suppose on supplying heat to the gas, its temperature remains constant but $n$ moles get dissociated into atoms. Heat supplied to the gas is

If one mole of an ideal gas goes through the process $A \rightarrow B$ and $B \rightarrow C$ as shown in the $P-V$ diagram. Given that $T_A = 400 \, K$ and $T_C = 400 \, K$. If $\frac{P_B}{P_A} = \frac{1}{5}$,then find the total heat supplied to the gas (in $J$). (in $.2$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module