Answer:
It is exothermic in nature.
Explanation:
(1) The reaction is exothermic in nature because it releases heat energy.
(2) Yes, the temperature of the water go up as the reaction releases heat energy and the temperature cool down as the heat energy is completely removed from the water.
(3) The piston move in when the pressure in the cylinder decreases and the piston move out when increase of pressure occur.
(4) As the outside movement of piston occurs, so we can say that the gas mixture does work on its surroundings.
(5) The system released 244 kJ of energy, in which only 150 kJ went into the water, then the difference must be the work done by the system on its surroundings.
W = (244 - 150) kJ = 94 kJ
I think thats the answer but feel free to check my work
Answer: frequency
Explanation:
The frequency of a wave is the number of cycles the wave complete in one second. It is measured in hertz (Hz) , gigahertz (GHz) or larger scales.
Frequency F is inversely proportional to period T, which is the time it takes a wave to complete a cycle.
I.e Frequency = 1/T
