The amount of heat needed to change from ice to water at 0° C is 80 cal. Find the mass of the substance taken.
A) 100 g
B) 1 g
C) 80 g
D) 20 g
Answered Feb 05, 2023
Correct option is B) 1 g
Correct Answer - state
Correct option is A) mass
D) specific heat
Correct option is A) Both are true
Mass (m) = 2 kg = 2 × 103 g. latent heat of fusion for ice (L) = 80 cal/g. To find: Heat energy (Q) Formula: Q = mL From formula, Q = 2 × 103 ×...
Correct option is A) Q = mL
Correct option is D)50g
Correct option is A) 900 cal
(A) 136 km When the piece of ice falls from the height h, it possesses potential energy, mgh. This P.E. is converted to heat energy. ∴ Q = mgh But only \(\frac{1^{th}}{4}\) of it is absorbed...
Correct option is: (C) 0.12 Ω
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