A heat engine absorbs heat Q1 at temperature T1 and heat Q2 at temperature T2.

Sodium hydroxide (NaOH) is a commonly used base and is hygroscopic, that is, it absorbs moisture from the atmosphere and becomes sticky.  The acidic oxides react with base to give salt...

Solar cooker and solar water heater.

(d)  0%. Explanation:  With the increase of petrol input the angular velocity of the wheel increases but in the absence of friction on the road, no external force on the scooter is...

(a) on the rear wheels is in the forward direction (b) on the front wheels is in the backward direction (c) on the rear wheels has a larger magnitude than the Explanation:  When accelerating the torque...

(a) The orbital angular momentum of the electron is increased by  1.05 x 10-34J-s 

efficiency = (T1 - T2 / T1) * 100 efficiency = 100/ 373 * 100 efficiency = 26.8

ΔU = q + w (1 Calorie =4.2 J)  ΔU = 2100+(-400) = 1700J

(d) Carton dioxide absorbs the Infra Red part of Solar Radiation

(c) Statement 1 and 3 contradict each-other, hence both statements cannot be true together. But there are a situation where in both statements are false that is if some of...

λ1 = 500 nm = 500 x 10–9m, λ2 = 700 nm = 700 x 10–9 m E1 – E2 = Energy absorbed by the atom in the process. = hc [1/λ1 – 1/λ2] =>...