The heat for melting or freezing water, also called the Heat of Fusion (Hf), is 80 calories per gram at 0Â°C, which is the equilibrium temperature. In other words, it is necessary to add 80 calories of energy to melt one gram of ice at 0Â°C.
The CVV Number (Card Verification Value) on your credit card or debit card is a 3 digit number on VISAÂ®, MasterCardÂ® and DiscoverÂ® branded credit and debit cards. On your American ExpressÂ® branded credit or debit card it is a 4 digit numeric code.
American Express Lost or Stolen Card Support Phone Number: 1-800-327-1267. Above mentioned number is a American Express support phone number for to inform lost or stolen American Express card. Using this number you can get assistance anything related to query and support for American Express card.