The following 2 question refer to two cups, A and B, each of which contains wate
ID: 1532732 • Letter: T
Question
The following 2 question refer to two cups, A and B, each of which contains water which was initially at room temperature (25 degree C). Each question describes the quantities of water and the Mannering which they are heated. Cup A above contains 40 grams of water and cup B contains 20 grams of water. The water in both cups was initially at room temperature (25 degree C) Both cups were heated to a final temperature of 50 degree C. Which cup had more heat energy transferred to It? tup B had More heat energy transferred. Cup A had more heat energy transferred. Both cups had the saw heat energy transferred. Not enough Information is given to determine the answer. Question 2: Cup A above contains 40 grams of water and cup B contains 20 grams of water. The water in both cups was Initially at room temperature (25 degree C), and then cup A was heated to 50 degree C and cup 3 was heated to 75 degree C. Cup B had more heat energy transferred. Cup A hid more heat energy transferred. Both cups had the same heat energy transferred. Not enough Information is given to determine the answer. You have three pots of boiling water on the stove. Which one has the low temperature? The one that is boiling water vigorously. They all have the sane temperature. The one which is Just barely boiling. The one that has been boiling the longest time. The freezing of atmospheric moisture into snow has a tendency to the temperature surrounding air to increase decrease not change if the air in your room is in thermal equilibrium, which of following is wrong? The molecules of the air have the same average kinetic energy. The molecules of the air exchange energy with each other at all times. Different parts of your room have the same average temperature. The molecules of the air have the same average speed.Explanation / Answer
The amount of heat required to raise th temperature is given by:
Q = m c (T2 - T1)
In case (1) mA = 40g and mB = 20 g temperature is same for both.
1)(b)Cup A had more heat enegy transferred.
In case B
mA = 40 ; mB = 20
TB = 75 and TA = 50
Qa = 40 x C x (50 - 25) ; Qb = 20 x C x (75 - 25)
QA = QB
(2)(c)same heat energy tranferred.