The mass of ice at 00C that can be melted using 1 gram of steam at 1000C is__________________
8 grams
0.125 gram
0.148 gram
6.75 grams
During a very cold winter, water pipes sometimes burst. The reason for this is______________
The ground contracts when colder, pulling pipes apart.
Water expands when freezing.
Water contracts when freezing.
The freezing process releases pressure on the pipes.
When you touch a cold piece of ice with your finger, energy flows______________
From the ice to your finger
From your finger to the ice
Actually both way
From surroundings.
Which of the following expands most when the temperature is increased? Equal volumes of_______________
Helium.
Iron.
Wood
Ice water
Which requires more heat either 75 kgs of Lead or 10 kgs. of Aluminium, if the temperasture raised in both the metals is 10oC.
10 kg of aluminium is 500 cal more than that of the other
75 kg of Lead is 500 cal more than that of the other.
10 kg of aluminium is 1000 cal more than that of the other
75 kg of lead is 1000 cal more than that of the other
A 70Kg person whose body temperature is 37oC consumes an entire 0.355 liters can of a soft drink (which is mostly water) at 12oC. Calculate the temperature change in a person when they drink a cold soda.
36.848oC
35.678oC
28.456oC
27.654oC
An insulated beaker with negligible mass contains liquid water with a mass of 0.250Kg and a temperature of 70.0oC. How much ice at a temperature of -19.4oC must be dropped into the water so that the final temperature of the system will be 38.0oC ?
13.55 kg
0.899kg
0.074 kg
12.29 kg
The lowest temperature possible in nature is_____________
0oC
– 273oC
0o
None of these
The food in a refrigerator is cooled by__________________
Vaporization of the refrigerating fluid.
Condensation of the refrigerating fluid.
The ice in your nearby freezer.
Liquidation of the refrigerating fluid
1 calorie =______________
418.18 J
41.8 J
0.418 J
4.18 J
