5kg of water (cp = 1 j/kgoc) is pumped to a height of 0.5 m, work done by the motor is 50 j/kg, and heat liberated by it is 5 j/kg, what is the final temperature of the water if the initial temperature was 0 c?
a) 4 c
b) 6 c
c) 2 c
d) 8 c

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

the answer is 75.0%.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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