Question
State the basic steps involved in the working of a heat engine.

Answer

1. The working substance absorbs heat $\left(Q_H\right)$ from a hot reservoir at constant temperature. $T_H$. It is an isothermal process $Q_H$ is positive.
2. Part of the heat absorbed by the working substance is converted into work ( $W$ ), i.e. mechanical energy. In this case, there is a change in the volume of the substance.
3. The remaining heat $\left(\left|Q_C\right|=\left|Q_H\right|-W\right)$ is transferred to a cold reservoir at constant temperature $T_C<T_H$. $Q_C$ is negative.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A current of equal magnitude flows through two long parallel wires separated by \(0.2 cm\). If force per unit length of \(4 \times 10^{-2} N / m\) acts on both the wires respectively, calculate the current through each wire.
Name a non$-\text{SI}$ unit of magnetic induction. State its relation to the $\text{SI}$ unit of magnetic induction.
A stone of mass $100 \mathrm{~g}$ attached to a string of length $50 \mathrm{~cm}$ is whirled in a vertical circle by giving it a velocity of $7 \mathrm{~m} / \mathrm{s}$ at the lowest point. Find the velocity at the highest point.
State and prove the principle of parallel axes in rotational motion
Light of wavelength $650 nm$ falls on the objective of a microscope having total angle of angular w separation as $60^{\circ}$. Calculate the resolving power of the microscope. [Refractive index of air =1]
Does the time spent by a charged particle inside a dee of a cyclotron depend upon its speed and the radius of its path? Why?
State the characteristics of a single-slit diffraction pattern.
In a parallel resonant circuit, the inductance of the coil is $3 mH$ and resonant frequency is $1000 kHz$. What is the capacitance of the capacitor in the circuit?
Define \(\alpha_{ dc }\) and \(\beta_{ dc }\). Obtain the relation between them.
A wheel of moment of inertia $1 \mathrm{~kg} \cdot \mathrm{m}^2$ is rotating at a speed of $40 \mathrm{rad} / \mathrm{s}$. Due to the friction on the axis, the wheel comes to rest in 10 minutes. Calculate the angular momentum of the wheel, two minutes before it comes to rest.