What amount of heat has been added-temperature changes
The specific heat of compound A is 0.50 cal/g °C. What amount of heat has been added to 100.0 g of compound A if the temperature changes by 5.0°C?
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Write a balanced chemical equation for the reaction Mg+ HCl. Given that 1 mole of Mg produces 1 mole of hydrogen, H2 what is the volume of 1 mole of hydrogen at room temperature and 1 atmospehre pressure.
The evaporation of water is endothermic as indicated by the following: What minimum mass of water has to evaporate to absorb 160 kJ of heat?
A modern transmits a 2 voltage signal into a channel. the channel adds to this signal a noise term that is drawn from the set {0,-1,-2,-3} with respective probablities {4/10, 3/10, 2/10, 1/10}, find pmf of output Y of the channel?
Find the corresponding reaction enthalpy and estimate the standard enthalpy of formation of the compound at 583 K. The constant-pressure molar heat capacity of benzene is 136.1 J K-1 mol-1 in its liquid range and 81.67 J K-1 mol-1 as a gas.
A resistance coil AB of 100 Ω resistance is to be used as a potentiometer and is connected to a supply at 230 V. Find, by calculation, the position of a tapping point C between A and B such that a current of 2 A will flow in a resistance
Electrons can be used to probe the arrangement of atoms on a solid surface if the wavelength of the electrons is comparable with the spacing between the atoms. Which of the following electron velocities would be appropriate for use in this applica
A 20.0-milliliter sample of .200-molar K2CO3 solution is added to 30.0 milliliters of .400-molar Ba(NO3)2 solution. barium carbonate percipitates.
The runner-up in a road race is given a reward that depends on the difference between his time and the winner's time. He is given 20 dollars for being one minute behind.
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