Physics

Physics, 01.07.2019 00:40, teresasaysrawr

What relationship is discussed in the zeroth law of thermodynamics a. heat of vaporization b. heat of fusion c..specific heat d. thermal equilibrium

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Physics, 22.07.2019 11:30, mm016281

How much energy is required to change a 40 g ice cube from ice at −14◦c to steam at 118◦c? the specific heat of ice is 2090 j/kg · ◦ c, the specific heat of water is 4186 j/kg · ◦ c, the specific heat of stream is 2010 j/kg · ◦ c, the heat of fusion is 3.33 × 105 j/kg, and the heat of vaporization is 2.26 × 106 j/kg. answer in units of j?

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Physics, 20.08.2019 22:30, gagem1278

A380 g metal container, insulated on the outside, holds 190 g of water in thermal equilibrium at 22°c. a 23 g ice cube, at the melting point, is dropped into the water, and when thermal equilibrium is reached the temperature is 15°c. assume there is no heat exchange with the surroundings. for water, the specific heat capacity is 4190 j/kg ∙ k and the heat of fusion is 3.34 × 105 j/kg. the specific heat capacity for the metal is closest to: 3440 j/kg ∙ k 2340 j/kg ∙ k 1340 j/kg ∙ k 840 j/kg ∙ k 2840 j/kg ∙ k

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Physics, 21.08.2019 19:30, josecano2

Which term describes the amount of heat needed to change 1 kg of a substance from solid to liquid at its melting point? a. specific heat of phase changes b. specific heat capacity c. latent heat of fusion d. latent heat of vaporization

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Chemistry, 26.10.2019 20:43, jholbrook7643

20 points for 2 chemistry questions! 1.) consider the specific heats. h2o(s) = 2.09 j/g · ◦c h2o (ℓ) = 4.18 j/g · ◦c h2o(g) = 2.03 j/g · ◦c. the heat of fusion for water is 334 j/g and its heat of vaporization is 2260 j/g. calculate the amount of heat required to convert 90 g of ice at −15◦c completely to liquid water at 56◦c. answer in units of kj. 2.) how much energy is required to turn 12 g ice at 227 k into steam at 382 k? specific heat of ice = 2.077 j/g·k specific heat of water (ℓ) = 4.180 j/g·k specific heat of steam = 2.042 j/g·k h2o heat of fusion = 6.00 kj/mol h2o heat of vaporization = 40.6 kj/mol answer in units of j.

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