Acertain gasoline engine has an efficiency of 30%; that is, it converts into useful work 30% of the heat generated by burning a fuel. if the engine consumes 0.80 l/h of a gasoline with a heating value of 3.25 times 10^4 kj/l, how much power does it provide? express the answer both in kw and horsepower. suppose the fuel is changed to include 10% ethanol by volume. the heating value of ethanol is approximately 2.34 times 10^4 kj/l and volumes of gasoline and ethanol may be assumed additive. at what rate (l/h) docs the fuel mixture have to be consumed to produce the same power as gasoline?

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.