37. As a substance mélts to rate that the mass changes its phase is described by the plot below. How much heat is needed to melt 3.0 kg of the substance? lla phase, heat, J y = 420,000 x A. 140,000 J B. 280,000 J C. 420,000 J D. 840,000 J E. 1,260,000J mass, kg

37. As a substance mélts to rate that the mass changes its phase is described by the plot below. How much heat is needed to melt 3.0 kg of the substance? lla phase, heat, J y = 420,000 x A. 140,000 J B. 280,000 J C. 420,000 J D. 840,000 J E. 1,260,000J mass, kg

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter2: The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 50P: (a) Hydrogen molecules (molar mass is equal to 2.016 g/mol) have vrms equal to 193 m/s. What is the...

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Question

Question 37

E107: latent heat
37. As a substance melts to its liquid phase, the
rate that the mass changes its phase is
described by the plot below. How much heat is
needed to melt 3.0 kg of the substance?
heat, J
y = 420,000 x
А.
140,000 J
B. 280,000 J
C. 420,000 J
D. 840,000 J
E. 1,260,000 J
С.
mass, kg
I

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