What is its final temperature
A lead fishing weight with a mass of 41 g absorbs 146 cal of heat. If its initial temperature is 54°C, what is its final temperature?
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Assuming that radiation with 15.0 cm is used, that all the energy is converted to heat, and that 4.184 J is needed to raise the temperature of 1.00 g of water by 1.00 C, how many photons are necessary to raise the temperature of a 350 mL cup of wa
A zero-order reaction has a constant rate of 3.00×10^-4M/s . If after 65.0 seconds the concentration has dropped to 1.50×10^-2 M , what was the initial concentration?
Using stirling's approximations and lagrange's method of undetermined multipliers. determine the expressions for the distribution of N particles.
A 265- flask contains pure helium at a pressure of 757 . A second flask with a volume of 485 contains pure argon at a pressure of 714. what is the partial pressure of helium.
Calculate the amount of energy in kilojoules needed to change 243 g of water ice at -10 rm ^{circ}C to steam at 125 rm ^{circ}C. The following constants may be useful:
How many grams of NO(g) can be formed from 5.0 moles of NH3(g) if there is sufficient O2(g) to use all of the ammonia?
A solution of sodium chloride in water has a vapor pressure of 20.1 torr at 25°C. What is the mole fraction of NaCl solute particles in this solution?
Electromagnetic radiation has an energy of 926 J. The wavelength of this radiation is 856 nm. How many photons are required to generate this energy?
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