Question

1. Which of the following is a warming process
a) Evaporation b) condensation c) boiling
d) all the above
2. Melting is a process in which solid phase changes to
a) liquid phase
b) liquid phase at constant temperature
c) gaseous phase
d) Gaseous phase at constant temperature
3
Three bodies A, B and C are in thermal equilibrium. The temperature of B is 45 C. then the
temperature of Cis
[ ]
a) 45
b) 50 C
c) 40°C
d) any temperature
1
The temperature of a steel rod is 330K. Its temperature in C is
a) 55 C
b) 57°C
c) 59 C d) 53 C.
When ice melts, its temperature
a) remains constant
b) increases
c) decreases
d) first decrease and then increase
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Answer 1

Answer:

Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE.