teel train rails are laid in 10.5-m-long segments laced end to end. The rails are laid on a winter day when their temperature is -1.0°C. Submit Part B ▾ Part A How much space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 33.0°C? Express your answer with the appropriate units. A nequest Answer PA D= Value Submit Request Answer If the rails are originally laid in contact, what is the stress in them on a summer day when their temperature is 33.0°C? Units Express your answer in pascals. Enter positive value if the stress is tensile and negative value if the stress is compressive. 95] ΑΣΦ 4 CINC ? Pa
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
Q2
![Steel train rails are laid in 10.5-m-long segments
placed end to end. The rails are laid on a winter
day when their temperature is -1.0°C.
SUDITI
Part B
Y
Part A
How much space must be left between adjacent rails if they are just to touch on a summer day when their
temperature is 33.0°C?
Express your answer with the appropriate units.
Request Answer
D=
Submit
Value
Request Answer
Units
Review Constants
If the rails are originally laid in contact, what is the stress in them on a summer day when their temperature is
33.0°C?
Express your answer in pascals. Enter positive value if the stress is tensile and negative value if the
stress is compressive.
195] ΑΣΦ 1
CO ?
Pa](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd6496e0d-5780-4574-b21f-287f33ef6d59%2Fff7d7821-9fc4-4bec-a6b7-c58fd802d219%2F83o0s7_processed.jpeg&w=3840&q=75)
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