GO An insulated Thermos contains 130 g of water at 80.0°C. You put in a 12.0 g ice cube at 0°C to form a system of ice + original water. (a) What is the equilibrium temperature of the system? What are the entropy changes of the water that was originally the ice cube (b) as it melts and (c) as it warms to the equilibrium temperature? (d) What is the entropy change of the original water as it cools to the equilibrium temperature? (e) What is the net entropy change of the ice + original water system as it reaches the equilibrium temperature?
GO An insulated Thermos contains 130 g of water at 80.0°C. You put in a 12.0 g ice cube at 0°C to form a system of ice + original water. (a) What is the equilibrium temperature of the system? What are the entropy changes of the water that was originally the ice cube (b) as it melts and (c) as it warms to the equilibrium temperature? (d) What is the entropy change of the original water as it cools to the equilibrium temperature? (e) What is the net entropy change of the ice + original water system as it reaches the equilibrium temperature?
GO An insulated Thermos contains 130 g of water at 80.0°C. You put in a 12.0 g ice cube at 0°C to form a system of ice + original water. (a) What is the equilibrium temperature of the system? What are the entropy changes of the water that was originally the ice cube (b) as it melts and (c) as it warms to the equilibrium temperature? (d) What is the entropy change of the original water as it cools to the equilibrium temperature? (e) What is the net entropy change of the ice + original water system as it reaches the equilibrium temperature?
Shown below are two carts connected by a cord that passes over a small frictionless pulley. Each cart rolls freely with negligible
friction.
1. Calculate the magnitude of the acceleration of each cart
2. Calculate the magnitude of the tension in the cord.
10 kg
37°
ΟΠΟ
53°
15 kg
An object with a mass of 10.0 kg is placed on a rough horizontal table. The object is then connected to a cable that passes over a pulley and is fastened to
a hanging object with a mass of 5.00 kg.
1. What is the minimum force of friction required to keep the objects in equilibrium?
2. What is the coefficient of static friction between m₁ and the table?
Must show complete and concise work.
m₁
m2
TH
A
m₁
m2
Two blocks (m₁ = 10 kg, m2 = 4 kg) are in contact on a frictionless table. A constant horizontal force of magnitude FA=6 N is applied to the larger block
as shown. (Hint: watch the tutorial)
1. Find the magnitude of the force F,
1 on 2
2. Find the magnitude of the force F
2 on 1
exerted by the larger block on the smaller block.
exerted by the smaller block on the larger block.
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
The Second Law of Thermodynamics: Heat Flow, Entropy, and Microstates; Author: Professor Dave Explains;https://www.youtube.com/watch?v=MrwW4w2nAMc;License: Standard YouTube License, CC-BY