In a completely opaque medium, if 50 percent of the incident monochromatic radiation is absorbed, which of the following statements are CORRECT? - (P) 50 percent of the incident radiation is reflected - (Q) 25 percent of the incident radiation is reflected - (R) 25 percent of the incident radiation is transmitted - (S) No incident radiation is transmitted
What mass of 75% pure CaCO3 will be required to neutralize 50 ml of 0.5M HCL solution according to the following reaction? \[ {CaCO}_3 + 2{HCl} \to {CaCl}_2 + {CO}_2 + {H}_2{O} \]
A gaseous reaction \( A \to 2B + C \) takes place isothermally in a constant pressure reactor. Starting with a gaseous mixture containing 50% A (rest inerts), the ratio of final to initial volume is found to be 1.6. The percentage conversion of A is
In the process of producing caustic (NaOH), 4000 kg/h of a solution containing 10 wt% NaOH is evaporated in the first evaporator, giving a 20% NaOH solution. This is then fed into a second evaporator which gives a product of 50% NaOH. The amount of water removed from each evaporator is
CaCO3 contains ________ of Calcium.
Match the technologies in Group 1 with the entries in Group 2:
A generalized relation for crushing is \[ \frac{d(P)}{m} = -K \frac{dD}{D^n} \] The solution for this equation leads to Rittinger's law for 'n' equal to ______.