6. The heat of combustion of ethane gas is 373 kcal pes mole. If 50% of energy is lost then the ethane requited at STP to burn to convert 50kg water at 10°C to steam at 100°C is
a) 1892 Its
b) 3783 Its
c) 5672 Its
d) 7566 Its​

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.