WBJEE · Physics · Thermal Properties of Matter
22320 cal of heat is supplied to 100 g of ice at \(0^{\circ} \mathrm{C}\). If the latent heat of fusion of ice is 80 cal \(\mathrm{g}^{-1}\) and latent heat of vaporization of water is 540 cal \(\mathrm{g}^{-1},\) the final amount of water thus obtained and its temperature respectively
are
- A \(8 \mathrm{g}, 100^{\circ} \mathrm{C}\)
- B \(100 \mathrm{g} ,90^{\circ} \mathrm{C}\)
- C \(92 \mathrm{g}, 100^{\circ} \mathrm{C}\)
- D \(82 \mathrm{g}, 100^{\circ} \mathrm{C}\)
Answer & Solution
Correct Answer
(A) \(8 \mathrm{g}, 100^{\circ} \mathrm{C}\)
Step-by-step Solution
Detailed explanation
Heat required to convert ice to water at \(100^{\circ} \mathrm{C}\) \[ Q=m \times L+m s \Delta T=18000 \mathrm{cal} \] Amount of heat left \(=4320 \mathrm{cal}\) \[ \begin{array}{l} m \times L=4320 \\ m=8 g \text { steam } \end{array} \]
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Which of the following relation represent Biot-Savart's law?WBJEE 2009 Easy
- The velocity of sound in air at \(20^{\circ} \mathrm{C}\) and 1 atm pressure is \(344.2 \mathrm{m} / \mathrm{s}\). At \(40^{\circ} \mathrm{C}\) and \(2 \mathrm{atm}\)
pressure, the velocity of sound in air is approximatelyWBJEE 2016 Medium - Light of wavelength \(6000 Ã…\) is incident on a thin glass plate of \(\mu = 1.5\) such that the angle of refraction into the plate is \(60^{\circ}\). Calculate the smallest thickness of the plate which will make dark fringe by reflected beam interference.WBJEE 2024 Medium
- A current ' \(I^{\prime}\) is flowing along an infinite, straight wire, in the positive \(Z\) -direction and the same current is flowing along a similar parallel wire \(5 \mathrm{m}\) apart, in the negative Z-direction. A point \(P\) is at a perpendicular distance \(3 \mathrm{m}\) from the first wire and \(4 \mathrm{m}\) from the second. What will be magnitude of the magnetic field B of \(P ?\)WBJEE 2019 Medium
- Which type of Gate the following truth table represents?
WBJEE 2011 Easy - The pressure \(p\), volume \(V\) and temperature \(T\) for a certain gas are related by \(p=\frac{A T-B T^{2}}{V}\) where \(A\) and \(B\) are constants. The work done by the gas when the temperature changes from \(T_{1}\) to \(T_{2}\) while the pressure remains constant, is given byWBJEE 2015 Hard
More PYQs from WBJEE
- If \(\sin ^{-1} x+\sin ^{-1} y+\sin ^{-1} z=\frac{3 \pi}{2},\) then the value of \(x^{9}+y^{9}+z^{9}-\frac{1}{x^{9} y^{9} z^{9}}\) is equal toWBJEE 2012 Easy
- Which of the following statements is true about equilibrium constant and rate constant of a single step chemical reaction?WBJEE 2024 Medium
- A body of mass \(2 \mathrm{~kg}\) moves in a horizontal circular path of radius \(5 \mathrm{~m}\). At an instant, its speed is \(2 \sqrt{5} \mathrm{~m} / \mathrm{s}\) and is increasing at the rate of \(3 \mathrm{~m} / \mathrm{s}^2\). The magnitude of force acting on the body at the instant is,WBJEE 2023 Easy
- Given an A.P. and a G.P. with positive terms, with the first and second terms of the progressions being equal. If \(a_n\) and \(b_n\) be the \(n^{\text {th }}\) term of A.P. and G.P. respectively thenWBJEE 2024 Easy
- If electrolysis of aqueous CuSO \(_{4}\) solution is carried out using Cu-electrodes, the reaction taking place at the anode isWBJEE 2019 Easy
- There are \(n\) elastic balls placed on a smooth horizontal plane. The masses of the balls are \(m, \frac{m}{2}, \frac{m}{2^2}, \ldots . \frac{m}{2^{n-1}}\) respectively. If the first ball hits the second ball with velocity \(\mathrm{v}_0\), then the velocity of the \(\mathrm{n}^{\text {th }}\) ball will be,WBJEE 2023 Medium