Dealer A in New York and dealer B in London used the following rates to change currency, namely euros (EUR), British pounds (GBP) and US dollars (USD): Dealer ABuySell
1.0000 EUR1.0202 USD1.0284 USD
1.0000 GBP1.5718 USD1.5844 USD

Dealer BBuySell
1.0000 EUR0.6324 GBP0.6401 GBP
1.0000 USD0.6299 GBP0.6375 GBP

Spot a chance of a risk-free profit without initial investment.

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.

Define thermoplastic polymers and thermosetting polymers in terms of their structures, and (ii) describe briefly a process suitable for the production of products from each type of polymer.