1 A hybrid SUV consumes fuel at a rate of 121 kmL How many m

1. A hybrid SUV consumes fuel at a rate of 12.1 km/L. How many miles can the car travel on 21.0 gallons of gasoline?   

2. How much heat in joules is required to heat a 47 g sample of aluminum from 76 F to 142 F?   

3. A titanium bicycle frame contains the same amount of titanium as a titanium cube measuring 7.8 cm on a side. PART A) Use the density of titanium to calculate the mass in kilograms of titanium in the frame. PART B) What would be the mass of a similar frame composed of iron? A titanium bicycle frame contains the same amount of titanium as a titanium cube measuring 7.8 cm on a side.

Please show work.

Solution

For 1 litre 12.1 kms

For 21 galon = 79.4936 l

Hence no of kms = 79.4936 x 12.1 =

961.87256 kms.

2) 47g from 76 to  142 F

For Aluminium 0.899 joule per gm is required

Hence heat required = 0.899(47) (142-76)

=

3) Volume = volume of cube = a^3

=

Density per cm^3 = 4.506 gm.

Hence mass = volume x density =