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the heats of combustion of C2H4 , C2H6 AND H2 are -1400.5Kj,-1558.3kj and -286.5kj. the heat of hydrogenation of ethene is.. pleaz solve lucidly ...
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the mean lives of a radioactive substance are 1620yrs for alpha emission and 405yrs for beta emission respectively. find out the time during which three-fourth of the sample will decay if it is decaying both by alpha emission ...
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*Image* what is the current flowing in G? PD across 5F capacitor.... PD across 4F capacitor... ...
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*Image* a mass of 8g of oxygen at the pressure one atmosphere and at temp. 27°C is enclosed in a cylinder fitted with a frictionless piston.the following operations are performsd: I-the gas is heated at constant pressure to ...
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in a triangle the incircle touches the sides BC,CA&AB at D,E&F respectively.If the radius of the incircle is 4 units and BD,CE,&AF are in AP with common difference 1,the what is the area of the triangle ABC????plzzz explain.. ...
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*Image* WHAT IS THE ORDER OF BASICITY.... GIVE REASON PLZ... ...
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*Image* Arrange in order of basic strength ...
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*Image* pulleys and strings are massless and there is no friction.find the relation for accelerations between hanging plank marked 1 and block marked 2. plz explain ...
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*Image* coeff of friction between any two blocks is 1/2. what is the max value of D such dat blocks move xithout slipping..... assume friction is there with surface ...
