If you were to walk briefly in space without a spacesuit while far from the Sun (as an astronaut does in the movie 2001,A Space Odyssey), you would feel the cold of space—while you radiated energy, you would absorb almost none from your environment. (a) At what rate would you lose energy? (b) How much energy would you lose in 30 s? Assume that your emissivity is 0.90, and estimate other data needed in the calculations.
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.
If you were to walk briefly in space without a spacesuit
while far from the Sun (as an astronaut does in the movie 2001,A
Space Odyssey), you would feel the cold of space—while you
energy, you would absorb almost none from your environment.
(a) At what rate would you lose energy? (b) How much energy
would you lose in 30 s? Assume that your emissivity is 0.90,
and estimate other data needed in the calculations.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
